cal/mag def?? help please

[ruderalis-roy]

Hi all i have a dinafem white widow auto that is flowering and almost overnight its developed little spots everywhere mainly on the older leaves heres some pics thsnks in advance for any help.

Edit: ignore the damage on the 4th pic its nothing to do with the problem lol

 

[InHumboldt]

It's phosphorus, to low ---I'm going crazy right now I have 3 different white widow types all new to me and the phos demand is insane--I can't keep up and I can't believe how much I'm giving it and it's still never enough-I'm losing them and I'm way over on the phos now. For you it's phosphorus as a symptom from the pics and as a white widow thing.

 

[ruderalis-roy]

Thanks inhumboldt it really dont look like phosphorus tho if it is i just fed with hesi phosphorus plus this morning so hopefully if it is that itl stop....

 

[Muddy]

A P deficiency usually starts on the leaf tips and edges and works in. With the spotting, that does look like cal/mag to me. How old are they? It's not unusual for some auto strains to show a cal/mag deficiency around weeks 5-7. Also, how is your pH reading?

When posting pictures of a suspected deficiency it's always best to take them under natural light so we can see the true colors of the leaves.

 

[ruderalis-roy]

Thanks alot muddy thats what i was thinking. Its 8 weeks old. Annoyingly i only fed it this morning so im gonna have to wait a few days before i can get some cal/mag into her?? Ph is 6.5 in and out

 

[Epic Genetics]

kinda hard to tell from the pics , at one point i almost thought pests

id give em a ph ballanced watering/flush , but add a couple pinches of epsolm salt and a good squirt of molasses , mix the water well because the es and molasses both take a good bit of mixing to properly dilute/mix

peace

 

[Muddy]

pH is good, so not a nute lockout situation. I always keep a bottle of cal/mag on hand for situations like this. If you have some, you could do a foliar spray with it at 1/4 or 1/2 strength. Make sure to mist both sides of the leaves.

Thanks alot muddy thats what i was thinking. Its 8 weeks old. Annoyingly i only fed it this morning so im gonna have to wait a few days before i can get some cal/mag into her?? Ph is 6.5 in and out

 

[ruderalis-roy]

Foliar spray while in flower?? Surely thats a bad idea? Dont fancy that idea lol n bob i dont have es or molasses lol think im gna have to wait a few days then give some cal/mag

 

[Muddy]

With good air circulation it should be an issue unless your RH is very high. Outdoor buds get rain soaked all the time.

 

[ruderalis-roy]

Humidity is a bit high tho lol keeps goin up n over 60% :-( n i generally dont feel comfortable spraying chemical on the buds mate lol